browser-extension-patterns
Browser Extension Patterns
Build cross-browser extensions with Manifest V3 architecture.
Manifest V3 Structure
my-extension/
├── manifest.json # Extension manifest
├── background/
│ └── service-worker.js # Background service worker
├── content/
│ └── content-script.js # Injected into web pages
├── popup/
│ ├── popup.html # Popup UI
│ ├── popup.js # Popup logic
│ └── popup.css # Popup styles
├── options/
│ ├── options.html # Settings page
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